the bug which let you duplicate a bin name, then not open the veg file is fixed in d. Maybe I was the only one careless enough to have this happen , but when I have a huge project I am bin nuts, and it bit me a couple a times .

"The issue has been fixed in the 5.0d update to Vegas, and a warning will be shown when you try to use an existing bin name again. 5.0d will be able to open your project files that are having this issue, and will automatically rename one of the bin names for you."

Thanks Sony, and I thought you had forgotten. Greatly appreciated .